US952567A - Telephone system. - Google Patents

Description

D. S: HULFISH. TELEPHONE SYSTEM. APPLIOATION FILED MAR. 7, 1907.

Patented Mar.22, 1910.

2 SHEETS-SHEET 1.

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DPS. HULFISH.

TELEPHONE SYSTEM.

APPLIGATION 211.111) MARJ, 1997.

952,567. Patented Mar. 22, 1910.

2 SHEETS-SHEET 2.

' Improvement unirnn s'rarss PATENT cannon DAVID S. HULFISH, OF CHICAGO, ILLINOIS, ASSIGNOR TO MQMEEN (Yo MILLER, OF

CHICAGO, ILLINOIS, A. COPARTNEBSHIP; L

TELEPHONE SYSTEM.

Serial No. 381,064.

To all whom it may concern: I

Be it known that l, DAVlD S. HULF'IsH, a citizen of the United States of America, rcsiding at Chicago, county of Cook, and State of Illinois, have invented a new and useful in Telephone Systems, of Which the following is a specification.

My invention pertains generally to telephone systems iuvolving the operation of party lines, but it is particularly applicable to telephone class wherein an automatic switch is prcvided for connecting calling lines to opcrators provided with conncctiiig means for connecting the calling lines further to the desired lines.

My invention provides certain facilities for the operation of party-lines in a system of the class above identified, and has as its object the elimination of a disadvantageous detail in the operation of party lines in any system, but particularly in a scmi-automa tic system employing automatic Y-switches.

It Will be seen that by the automatic tion of a switehii'ig a calling line and connecting that line to an operator, as is the function of an automatic Y-system, the identity of thc calling line is not transmitted to the operator serving the line for that call, inasm'uch as no provision for such identification has been'madc in devices heretofore providcd for the automathr -service. The weakness of such a system becomes evident when a party at a station upon a party-line calls (by directory num her only) for another station upon the same party-line ;.of course the callingline is made to give a busy test by the Y-switch connecting it to the operator, and when the operator endeavors to connect with the same line by her connecting means she finds it testing busy, and so reports to the calling patron; this results in the impossibility of connecting a party-line station for conversation WltllitllOllltl station upon its party-line through the usual methods of automatic Y- switching, unless the calling patron advises the operator that the called station is the same line with the station originating;- the call.

I provide means in association with the Y-trunks and Y-switches to place upon the calling line such a distinctive lousy-test consystcms of the semi-automatic upon i l l l l l l l l l l l 1 i i l 3 labeled as a whole 16. device in responding to dition that the operator testing the line will recognize-the test received upon the testing plug as being;- that given to the line by the answering equipment of the plug, thus identifying at once the reverting nature of the call, and enabling the operator to complete the connection properly and with the mini mum of annoyance to the calling patron.

r This description is accompanied by three ngures.

Figure 1 shows the circuits of the central oliice equipment in an umed semi automatic central ottice when y these results are attained, and shows details of one type of automatic equipment adapted for the operation of my invention; Fig. 2 shows mechanical details oi a switch suit able for the device 16 of Fig. 1; and Fig. 3 shows an elaboration of detail where two or more trunks are given the same distinctive test.

in Fig, l is shown a party-line of four stations, having an automatic-t equipment This equipment 16 is taken largely from United States patent to Land, 818,540, April El, 1906, the device of Land being but slightly modified by the ad dition of a. fourth wiper, 23, in lieu of a direct ground for the armature of the relay 1?. It will be noted that in the modification, the wiper 23 always connects the armature of relay 17 to ground, either directly as when in the position shown in the figure, or through a contact, a conductor and an induction coil winding, from any of the remaining contact points accessible to the wiper 23. The wiper 23 may be made broadenough always to make connection with the next contact point before breaking connection with the preceding one. The modification of the device of Land, as shown in the figure herewith, is not required for direct or singleparty lines, but only for the multi-party lines entering the switchboard.

The operation of the line in calling will be evident from the following description: At 10 is shown a common battery substation Patented Mar. role.

telephone equipment of aWell known type in which circuit through conductor 11 is closed for direct current when the hook is up, and circuit through a condenser 12 and a high-resistance ringer hook is down. This substation telephone a is closed when the chanrcal type, the associating operating mag- F to pass forward until its nets oi said switcl'i, relay armaturcs and contacts for said operating magnets, and an associated relay 1?, not necessarily mechanically a part of said automatic switch. In said automatic switch, 18 is a magnet adapted to propel the moving part of the'switch, and 19 is a magnet acapted to release said moving part for restoration to its normal position of rest tl'irough action of springs or gravity. 2G, 21, 22, 23 are movable contact terminals or wipers attached to the moving part of said automatic switch and adapted to make contact with fixed terminals or waiting contacts, as those shown associated with conductors 26, 25, 2e, 27, respectively. In mechanical design, the automatic switch mechanism of the cquipi'nent 16 may he of any desired form, a diag aromatic representation of the conditions rcquiredior this switch being shown in Big. 2, in wluch the designating nun'ierals given. are those of Fig. 1., some further parts being designated. by letters.

InFig. 2, l) is a shaft supporting insulated wipers 20, Q1, 22 A is a ratchet mounted upon the shaft B. C is an armature for magnet 18. i) is a pawl pivoted upon armature C. K is a fixed pin guiding pawl D. H is a pin upon pawl I). it is a pivoted. detent-pawl. (Jr is a pin upon pawl M. E is an armature for magnet 1.2). l" is a link pivoted upon armature E and having a hook projection.to engagc pin (1, and a st'aight arm PIOJCCiLlOlI to be engaged by pin H.

In operation, successive energizations of magnet 18 will attractarmature (J successively, and thus cause driving pawl l) to propel ratchet A one tooth tor each such encrgization, the ratchet A being held 'iii; its determined position by detent-pawl M. Following thus, the cnergization of magnet 19 will attract its armature E, causing link hook projection passes over pin G, the ratchet A being dctained by detent-pawl M during the continuance of the energization of the magnet 19. Upon deeuergization of nnignct it) aiul consequent release of armature E and rcturn of that armature by spring tension to its position of rest, link i retires to its normal position of rest, and in so doing its hook projection engages pin (it on (lctcnt pawl M- and withdraws said detcntpmvl from engagement with the -atchet A. Ratchet A therefore is released and therel i t Upon the next energization of magnet 18 and consequent movement of arn'iature C and pawl 1), pin ll. engages link i and lifts it until its hook projection is lifted out of engagement with pin ti, thus releasingdetcnt-g1 awl M to act as previously dos bed.

.itefcrring again to Fig. 1, the step-hystcp movement oi the wipers Qt), 21, 22, 23, causes them to main: electrical connection successively with the waiting contacts shown adjacent thereto until conncctimi is made with the waiting; contacts of" a trunk not already in use, when connecting relay 1?) is energized, resulting in the stopping of the motion at the wipers and in the connecting of the line comtuctors ll- 15 to the wipers 21 The waiting contacts of the automatic switch in equipment it} are connected to a plurality of trunks, each trunk being equipped with keys and signals, as shown in the lower portion of Fig. 1, and terminating in a connecting plug, 41-8. The trunk tnlhng' coiuluctors are two in number (indicated as :24- and :25) and they are multiplied through the waiting; contacts of a. plurality of autonuitic Y-switches pertaining to lines,.

the trul'ik-husy test conductor it) and auxiliary conductor also are multiplied through waiting contacts of those automatic 'iswitches for purposes of lousy test. Each trunk thus is accessible from a phirality of automatic switches, and each automatic switch has accessible a plurality of trunk circuits.

The action of the line equipment 1.6 in sclet-tinga trunk not already in use is follows: Upon the rcn'ioval of the receiver from the hook at substation telephone 10, current Flows from hattery 28, through relay 1? and conductors 15, 1.1, l t, 29, and to ground, energizing relay 17 and attracting itsarmaturc, The encrgization of relay 1? gives path for current from hattcry through elemen-ts130,618,?l1, 29,, 3:3, 20, at, 23, 2:1 and to grouiul, energizing actuating relay .18, which prilipcls wiper '20 into connection. with waiting test contact of the trunk 2st 25, and wipers 2t, 22 into connection with con- (hictors 2t also wiper 23 into connection with conductor 27. The attraction of the armature of relay 18 has interrupted the circuit last dcscrihcd by breaking the connection between conductors 30 and '31; but, this interruption has dccucrgized relay 18 and upon the release of its armature the pre viously dcscrihcd circuit is cou'ipletcd again as far as wiper 20. it at this time trunk 2t he already in, use, a ground will he found upon test conductor 26 and circuit will he completed tor battery 28 over conductors 3t), Bl, 33, 20, 26, and to ground, nncrgizingr relay [8 and stepping wipers 20, 21, 22, 211 forward to the next trunk. 'ihis fore may return to its position of rest. cycle of operations will repeat automaticv co- ;ects of the trunk 2a through relay 1?, conductor from. battery cease? ally, so long as wiper 20 finds a ground upon the test conductor of the trunk connected with, but as soon as a trunk is found Whose testconductor, as 26, is not grounded. the circuit from the wiper 20 to ground will not exist, and current will flow from butteryES over conductors 30, 31, 36, and to ground, the conductor 36 including the winding of relay 1.). The resistance of relay i8 is low, and the number of turns of the conductor 30'upon relay 18 is comparatively small, While. the relay 19 is of high resist ance, and the munber of turns of conductor :56 upon relay 19 comparatively large; furthermore, the spring tensions upon the arniatures of those relays are capable of relative adjustment. in response to this current through relays l8 and 19 in relay 18 is not sufficiently ene gized to attract its arniatures or to break is armature contact, while the relay it is energ zed to operate its armatures. Conductor 33 is removed from conductor 32, and placed in connec tion with conductor 3?, thus placing a ground upon wiper 20 and upon test coudoctor 23, and. thus upon the niultipled test preventing the connection with that trunk of any telephone line through its equipment, such as 16, and reserving that trunk exclusively for the use telep 10116 line ll 15 and the substation telephone .10. The aruiatures of the relay it) also have connected conductors and '38 to Wipers 2i. and 32, and therefore to conductors 2a Current previously lowing 28 to relay 1? and cozuluctors ll", 11, 1 29 and to ground. now :liow's 15, Ill, t l, 29, 2'22, 24, 89, signal 41-0 and to roinid, without such interruption in changing as would affect relay 1?. The energization of relays 1'?" and 19 therefore is continued, and calling visual signal 40 is displayed oerore the operator using equipment indicating to her that a calling patron has been connected .1 o

the trunk served by the signal 40. The circuit conditions now existing and which will remain unchanged throughout the further promotion and continuance of the connec- (ion give a current from the battery 23 through the speech transmission devices of the substation 10 in series with the conductors forming windings of relay 1? between one side of the line and the grounded batttery and the winding of visual signal 40, between the other ground. The relative resistances and impedances of relay 1? and visual signal 40 shall be such as to maintain proper balance of the line (.OllClllliUi'S current for speech transinissiml from the substation 10 Without unduly detracting from speech transmission to or from substzr tion 10, Conductors 42, 5 .3, and associand to supply proper side of the line and Med calling jacks provide for calls in which substation l0 is the calledstation to the com ncc'tion.

It trunk equipment consists of visual signals 40 and 45, keys 46, 47, and plug 48, located in a switchboard accessible visually and manually to the operator using the equipment 41. r

The trunk 2% 25 from the Y-switch terminals to the plug terminal constitutes one connective device unit, corresponding to the cord pair of a manual switchboard, the calling, connecting or ringing plug being shown at 48 and the answering plug being displaced by the answering equipment constituted by the Y-switches, the action of any Y-switch corresponding electrically to the insertion of an 4 answering by an operator. Obviously, it is immaterial in the application or my invention, Whether the connective link circuits 2% 25 terminate in the. fixed or in the movable terminals of the Ls-witches serving to connect with calling lincs, or whether the answering be by manual DIBFLIIS.

In response to the display or signal l0, operator at ll presses key which is adapted to remain in its depressed position until released by the hand of the operator. This places the operator at all in telephonic communication with the patron at' the telephone 10. She asks for and receives his order. lnythe execution of the order she tests the jack l9g if the line be idle, the battery 28, which is the same battery as 28, finds its own potential upon the test ring of the jack and no audible signal is heard. The path from the battery to the tip of the testing plug is, battery 28, tertiary induction coil winding 51, key 46, conductor 52, ringing key 1-7, and to tip of plug 48; the path from the battery to the test ring of any idle jack is battery 28, conductor 30, relay l8, conductor 31.. relay 19, conductor 36. The busy test condition of a line is with ground. upon the test thiinble, and for this reason the body of each connecting plug as 48 is grounded.

lv'hen any plug; inserted the action of the automatic Y-equipnient 16 is as follows: The insertion of a. plug having a grounded body gives a circuit through elements 28, 30, 18. 31, 36. 19,- 36,130 and body of plug to ground; this, by the relation of relays 1S and 19 before described actuates relay 1!) but not relay 18; relay 19 connects the talking conductors of the line to wipers 21 22, but those are open, on eu'i 'ity contacts, and relay 15) also takes the ground oil of conductor 99 (or 4-3 or 14) thus pcruiitiug the desired station to be rung from the tip of the plugrby a generator grounded upon the sleeve side. The plug 48 is shown equipped with key 47; the key -in a jack, as 50,

47 being in turn associated with keys 0. L c d and generators A, B,"U,D. Station 10 may be rung by inserting plug 48 into jack 50 andoperating g' simultaneously keys 47 and a; station 1O by keys 47 and 7), etc., the generators A B C D being adapted to ring selectively signal bells a 7) c (1, respectively.

Passing to a Consideration of disconnection, the two conditions are as follows: If the line were called by plug and jack 50,

the removal of the plug would cause the ;pulsa1ions would be triple; tor trunk 24" de'energiz ation of relay 19, and all parts are in'their normal condition of disuse. It the line were calling, then by hangingthe receiver upon the hook at substation l0 current flowing through conductors 11 and 39 is interrupted and the signal (as 40) is re leased. The breaking of circuit for direct current throughsubstation 10 has deenergized relay l7 and by release of the armature of that relay has interrupted the current throu h relay 19, by the deencrgization of whici the mechanisms associated with its armature have effected the restoration of switch 16 as a Whole to its position of rest. Upon the release of the signals/l0 and 4-5, the operator will remove the plug from the jack. The action of the equipment when the tested line is not busy thus is understood. The nature of the audible busy test now will be studied.

When a line is busy by reason of a plug with grounded body being in one of its jacks, the audible test is a simple click from thc'tertiary 51 of the induction coil due to' current from the battery 28 to the direct ground of the plug body. When the line is a single-party line, and the mechanism of the Y-device 16 is simplified by the omission of the Wiper 22-3, and the substitution therefor of a direct ground upomthe armature of the'relay 17, as shown in Land, cited, then the test is similar, the path from the test thimble of the jack being through conductor 35 and contact of energized relay 17 to the ground upon the armature of relay 17. If, however, the line tested be a party line and it has called through a trunk equipped per my invention with distinctive audible-test device, as the trunk 24 25, then the test from jack 50 will be through conductor 35, contactand arlntaure of relay 17,

wiper 23, conductor 27 and induction coilwinding togrouiuhand-thc busy test will consist of the combination of the click from battery 28 and also any audible sound current generated in the winding 53. If the line l4 15 call through the trunk 24 25,

then the induction coil winding 53 is con-- ncct ed to'the jack 50: if the line l4 I?) call through the trunk 24 25". then the inducshown in the pulsations would be single, and would be heard at a different frequency as well as at a dillcrcnt pitch. ()thcr coinl inations may he worked. out.

Assume now that station [0 calls, takes trunk 24 27 and asks the operator at 4-1. for station 10; the. operator touches the body of jack 50 with plug 48. hears a tone test, holds the plug on the jack long enough to identity the test as beingdistinctive of the trunk associated with the plugs'tl; she knows thus that the party is calling; for his own line and she plugs in over the test and t rings the station desired; it necessary tonal-z thestali'on calling to hang up the receiver to permit the ringing of the slation called, the presence of the plug 48 in the ack 00 will hold the relay 1f) energized, holding the wiper 20 on conductor 26, thus holding the busy test on the trunk 24 25 and preventing some other calling lino fron'r interfering with the proper operation of the connection.

The variations in distinctive tests required need not be carried to ridiculous nor prohibitive numbers it is the plan of automatic Y-systems to divide the lines into groups of 100 to 1000 lines each and to pro vide for each line group a group, oi. trunks.

limited to a small proportion of such groups and those groups having no party lines need have no tone test. Further, where multi-party lines and single-party lines have access to the same trunks, the single-party lines may have the wiper 23 disconnected and the armature of relay 1'? grounded, thus causing the tone test to be less frequently met, and reducing the confusion resulting from using the same tone test for a plurality of trunks. Further, the tone tests may be and preferably so) identifiable only one tone test per operator, all of her trunks hav; ing the same identification tone test, instead of a di fi'erent test for each trunk as shown in Fig. 1. This modification of my system. is shown in Fig. 3. In Fig. 3, the two trunk plugs 48 and 48 are used by the same operator and the trunks of that operator are all. supplied over conductors 27, 27", etc, with tion coil winding 53 is connected to the 1 tone lost through coil 530 from the commujack 50.

Signal producing means For the l tator cmnbinalion 530 560, that commutator combination being distinctive for this operator, and she need consider no other identification test. When the operator encounters and recognizes her own tcnem'pon the plug 48 in testing, she knows only thatshe is testing a line which has been ansivcred by some one of her trunks, although not necessarily by trunk 24; 25 associated with plug L8 She then depresses the key 59 associated with plug 8 and tests again. The key 59 removes conductor 27 from the induction coil winding 530 and places it upon conductor 60 directly to ground, thus taking the tone from the jacks of the line calling over trunk 24- 25 and it upon sec- 0nd test the operator finds her tone gone from the jack of the line tested, the calling line and. the called line are identified positively as being the same, and the operator completes the connection accordingly.

1 cite the modification of Fig. 3 as being the preferred form of my invention, inasmuch as it is the form of reduction to practice whereby the maximum convenience in result is attained with the greatest simplicity in design and oper tion.

It is stated frankly herein that the r de vice of 1, shown at 16, is taken from the prior art. In this connection I wish to state that the device of was not solccted for any specific reasons of adaptability to invention. Any of the many f-devices known to the art may be modified to iconfoign to the requirements of my invention. This statement is madebroadly, and applies equally to i -devices where the Y-device is individual to the line, as in Land, cited, and to isystcms where the Y-device is individual to the trunk, as disclosed in British patent to Dunbar, 11,290 of 1905.

Having thus described my invention, what 1 claim as new and desire to secure by United. States Letters Patent is:

1. In a telephone system, lines, switching devices for interconnecting said lines, and tone test devices connected normally with the answering equipment of said switching devices whereby the test received from a tested line through the connecting terminal of a switching device may disclose to some degree the identity of the switching device then associated through answering equipment with the tested line. r

2. 1n :1 tele hone system, lines, connective link circuits or interconnecting said lines, discriminative test devices connected normally with the answering elements of said connective link circuits, and means whereby the test received from a tested busy line, may disclose to some degree the identity of the connective link circuit then associated through its answering elements with the tested line.

in a telephone system, lines, connective link circuits for interconnectin said lines, said link circuits being divided into groups, test devices associated with the answering equipment of each group of said connective link circuits, and means whereby the test received from a tested line through the test conductor of the tested line and fromthe answering terminals of a connective link circuit may disclose the identity of the group of connective link circuits comprising the connective link circuit then serving that line.

4. In a telephone system, lines, connective link circuits for interconnecting said lines, said link circuits being divided into groups, and tone test devices associated with the answering equipment of each group of conncctive link circuits whereby the test received from a tested line connected through iiid answering terminals may disclose the identity of the group of connectivelink circuits associated with the tested line through answering terminals a telephone system, lines, connective link circuits for interconnecting said lines,

link circuits being: divided into groups, aplurahty of distinctive audible-tonc-currentproducing lovices, one of said audible tone-cuwent-producing devices being associated with the answeringterminals or each urou of said connective devices and means. l 9

for connecting the distinctive tone ofthe link-circuit group to the test 'conductorsof all lincs connected with the answering terminals of link circuits of the group, whereby the test received from a, tested line may'disclose the identity of the group comprising I the link circuit then serving that line throu answering terminals, substantially as escribed. i

6. In a telephone system, lines, connective link circuits for interconnecting said lines, said link circuits being divided into groups, a plurality of distiuctive-audible-tone-currentproducing devices, one of said audibletonc-curreut-producing devices being associated with the answering terminals of each group of said connective link circuitsmeans for connecting the distinctive tone of the link-circuit group to the test conductors of all lincs connected with the answering terminals of link circuits of the group, whereby the test of a busy line connected through such answering terminals may reveal the -idcntity of the link-circuit group, and further means for varying the audible quality of the test from any selected trunk.

7. in a telephone system, lines, connective link circuits for interconnecting said lines,

said link circuits being divided into groups, a plurality of distinctiveaudible-concourrcnt-produciug devices, one of said audible tonecuwent-producing devices being associated with the answering terminals of each seas-e":

trunks, each having talking conductors and an auxiliary conductor, said trunks being divided into groups; a source of tone-test currents, said source being connected to the auxiliary conductors of a group of said trunksihrough manually operated switches individual to each of the trunks of the group;"xneans associated with the manually operated switches of the trunk equipment whereby by the operation of the manually operated switch associated with the auxiliary conductor of the trunk the nature of the audible test upon the auxiliary conductor of the trunkinay be modified; and "t-sivitches connecting trunks to calling lines, the switches being adapted to connect :the talk ing conductors of the trunk to the talking conductors of the line andthe au conductor of the trunk to the test conductor of the line.

17. Ina telephone system, lines, trunks,

test current devices giving identification testconditions for groups of said trunks, and Y'- switches connecting trunks and calling lines and impressing upon the test conductor of a connected line the identification test peculiar to the group of trunks containing the trunk connected to the line.

18. ln a telephone system, lines, trunks, test current devices giving audible-tone identification tests for groups of said trunks,

and f-switches connecting trunks and 'calling lines and impressing upon the test conductor ot' a connected line the audible tone identification test of the group to which the connected trunk belongs.

19. In a telephone system, lines, trunks, test. current devices giving audible-tone identification tests for groups of trunks, iswitchcs connecting trunks and calling lines and impressing upon the test conductor of a connected line the audible'tone identification test of the trunk group to which the connected trunk belongs, and means individual to each trunk for removing from the trunk its identification test.

20. In a telephone system, lines, trunks,

testv current devices giving identification tests for groups of said trunks consisting of distinguishably diilerent audible-tone currents upon conductors pertaining to the calling lines and impressing upon the testconductor of a connected line the audible tone identification test the trunk group to which the connecteo trunk belongs, and a manually operate key individual to each trunk for removing iron: the trunk its identification test. 1

ll. in a telephone S f-siclll, lines, adapted to connect with said lines and ca rying a busy test potential to the test conductor of the line connected with, Y s. itches adapted to connect with said lines and carrying a busy test potential to the test con: ductor ot' the line connected with, and a tone test device supe iposing a tone test upon f-il to line by the connection.

-n a telephone ein, lines, plugs adapted to Ct ect 3 lines and carrying a o v t LG the testconductor of the line connected with, and rsn'itches adapted to C(', l]llGCi1 with said lines andcarryunf busy test potential to the test conductor 0* the line connected with, said plugs and f-switches giving audibly different test" in a em, in" connective links, it answer. "ermir h a line may he identl to some by any testing plug at a 1* i al of the he in a telephone 5 stein, lines, switching test plugs, and an audible-signal an- J ngz terminal identification test device Where 5 the answering terminal 01' a switchin; link onnected with line may he identitied '0 some degree by tests by any testing plug at any terminal of the connected. line.

25. In a telephone system, lines, switching devices for interconnecting said lines, said switching devices being arranged in groups, tone test devices ing terminals of said switching devices and SLQJGllIUPOSlHQ a tone test upon the normal test of a busy line when the line is connected through the answering terminal of a switci in device, said tone test varying mushahly with diilerent groups of switching devices, whereby the group of the conssociated with the answerdistinnecting switching device may be identified by tests from any terminal. of the line.

26. In a telephone system, a connective device; alnisy-tcst device normally ass '0' with said connectifise device whereby the testing member of said connective device may receive from the answering member of said connective device a predetermined test audi ble the telephone operator; and a testchan ing he separate from the listening key for changing the test when thus audible to the operator.-

trunks, Y-switches connecting trunks and i 2?. In a telephone system, a connective de vice; z; busy-nest device nm-nmlly associated Signed by me at Chi ago, county of Cook, Wlih sand connective dkYKZG whereby the festand State of Uln101s,-1n the presence of two 10 111g member of sand conneci'n'e devlce may re- \vlt-nesses.

cewe fmi'n :he answering member of said D w A ID 5. HUIPI H. connective dance a c011abmedmllclvwd-tone V k J b iifis f audlbie To the telephone opgrator; and vVltngssesz means for remnvmg the tone from H10 fast I J. M. MUNISTON,

6 whez'x thus nudlble to the operator. I HARRIET L. SMITH.

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